Toyota 4Runner manuals

Toyota 4Runner: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Power Door Lock Control System

Symptom

Suspected Area

See page

No Door Lock/Unlock Functions Operate Via Master Switch or Driver Side Door Key Cylinder

Proceed to "All Doors LOCK/UNLOCK Functions Operate Via Master Switch or Driver Side Door Key Cylinder"


Only Driver Door Lock/Unlock Functions do not Operate

Front door lock assembly LH


Harness or connector

-

Main body ECU (Multiplex network body ECU)

-

Driver side junction block assembly

-

Only Passenger Door Lock/Unlock Functions do not Operate

Front door lock assembly RH


Harness or connector

-

Main body ECU (Multiplex network body ECU)

-

Driver side junction block assembly

-

Only Rear Door LH Lock/Unlock Functions do not Operate

Rear door lock assembly LH


Harness or connector

-

Main body ECU (Multiplex network body ECU)

-

Driver side junction block assembly

-

Only Rear Door RH Lock/Unlock Functions do not Operate

Rear door lock assembly RH


Harness or connector

-

Main body ECU (Multiplex network body ECU)

-

Driver side junction block assembly

-

Only Back Door cannot be Operated

Proceed to "Only Back Door cannot be Operated"


Initialization
INITIALIZATION 1. PROCEDURES NECESSARY WHEN CABLE IS DISCONNECTED/RECONNECTED TO BATTERY TERMINAL NOTICE: After the battery is reconnected, be sure to wait 10 seconds or more before att ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU) (See page ). (b) Measure ...

Other materials about Toyota 4Runner:

Rear Power Window RH does not Operate with Rear Power Window Switch RH
DESCRIPTION If the manual up/down function does not operate, there may be a malfunction in the rear power window regulator switch, rear power window regulator motor, harness or connector. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE ...

The indicator and buzzer
When a sensor detects an obstacle, the direction of the obstacle is indicated and the buzzer sounds. Sensor operation and distance to an obstacle The system operates when the vehicle approaches an obstacle, as shown by the following table. 1. Rear cor ...

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